It checks what you already own first

How a recommendation gets its score

Six factors, weighted, recomputed against your account every time you open the store: need (40%), compatibility (20%), price fit (15%), popularity (10%), curation (10%), and availability (5%).

Need dominates on purpose. It asks one question: does this close a gap for you? Would it unlock exercises your current setup can't do, hit a muscle group your ranks say you've been neglecting, match the goal you're training toward, restock a supplement you're running out of, or suit the nutrition phase you're in right now. Miss all of those and a product scores low on need no matter how many other people bought it.

Compatibility handles the obvious thing first: own an equivalent piece of equipment and the product scores zero there. You logged a flat bench, so you will not be sold a flat bench. Price fit reads the product against the budget band you set, if you set one, and favors the middle of your range over the edges. Popularity and curation come from engagement data and hand-picked selections, and availability quietly pushes down anything out of stock.

Shelves built around your gaps

Instead of one flat grid, the store builds shelves, and a shelf only appears when there's a real signal behind it. Own some gear already? "Complete Your Gym" surfaces the pieces that would unlock new exercises given what you have. Ranks showing a weak point? "Train Your Weak Points" appears. Running low on something you track? "Time to Restock." Mid-cut, or deep in contest prep? "Phase Essentials."

New account with nothing logged yet? You get curated and popular picks rather than a guess dressed up as personalization. As you log workouts, mark the equipment you own, and track your supplements, the shelves sharpen.

Every shelf is capped and sorted by score, so even a broad one puts the best fit first instead of dumping the catalog on you in whatever order it came out of the database.

Why this is worth doing at all

Buying gym equipment and supplements normally happens with zero context. Is this bench redundant with the one in your garage. Does this pre-workout stack another 200 mg of caffeine on top of what you already take. Does this attachment do anything for the goal you're training toward this month. You are expected to hold all of that in your head while a product page works on you.

The store already knows most of it, because you logged it: your equipment, your goals, your weak points, what you're running low on, what phase you're in. So it scores against that instead of asking. What comes back is a shorter list, and each item says why it's there: "unlocks 3 new exercises," "targets a muscle you want to bring up," "time to restock."